package main

import "fmt"

func main() {
	var a string = "你"
	var b string = "好"
	fmt.Println(len(a))
	fmt.Println(len(b))
	fmt.Println(len(a + b))
	fmt.Println(a[0])
	fmt.Println(a[1])
	fmt.Println(a[2])
}
